From: Jeff Dike <jdike@addtoit.com>
To: Henrik Nordstrom <hno@marasystems.com>
Cc: Giovanni Marzot <gmarzot@nortelnetworks.com>,
user-mode-linux-devel@lists.sourceforge.net, jeremy@goop.org
Subject: Re: [uml-devel] Re: Valgrind meets UML
Date: Fri, 24 Oct 2003 21:02:32 -0400 [thread overview]
Message-ID: <200310250102.h9P12WaK003944@ccure.karaya.com> (raw)
In-Reply-To: Your message of "Fri, 24 Oct 2003 10:22:03 +0200." <Pine.LNX.4.44.0310241018400.24620-100000@filer.marasystems.com>
hno@marasystems.com said:
> Which alone should trap some stupid mistakes with uninitialized
> variables, even if the memory allocation/deallocation integration is
> not set yet so it it not totally fruitless.
In the small amount of testing I did (boot up tomsrtbt and halt it), it didn't
find anything real. It found some structures that I was passing into system
calls that were incompletely initialized (because it didn't make sense to
initialize some fields or because there was a union in it and the code was
using one of the smaller arms), and a few similar things.
It's going to require more extensive of UML under valgrind to start finding
bugs.
> It should also allow for the cachegrind mode, which some people might
> find useful.
Cachegrind would be particularly interesting, and cache behavior along a
particular code path would be interesting to people, so this wouldn't
necessarily need a real workload to be useful.
Jeff
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prev parent reply other threads:[~2003-10-25 0:59 UTC|newest]
Thread overview: 7+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-23 14:40 [uml-devel] Re: Valgrind meets UML Giovanni Marzot
2003-10-23 16:02 ` Jeremy Fitzhardinge
2003-10-23 16:11 ` Giovanni Marzot
2003-10-23 16:45 ` Jeremy Fitzhardinge
2003-10-24 1:01 ` Jeff Dike
2003-10-24 8:22 ` Henrik Nordstrom
2003-10-25 1:02 ` Jeff Dike [this message]
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